Fog

When you are not familiar with driving in fog, it becomes quite challenging. The visibility is severely hampered and, in some cases, the visibility is limited to a few meters only. As a driver, it is important for you to learn how to drive safely in fog conditions as it is a common occurence in winter season. During fog, you are advised to use fog lights. Fog lights are specially designed to improve the visibility during fog. The fog lights are generally installed on or below the front bumper. These lights are aimed towards the driving direction as far as possible. The difference between low beam, high beam and fog lights is the way they project the light, as shown below.

Guidelines to Drive in Fog

During winter season, be aware of the local weather conditions. In general, fog is often a morning or evening weather phenomenon. Therefore, if possible avoid driving during these periods. However, if driving is unavoidable then be extra cautious and follow the guidelines given below.

• Especially in fog, the natural tendency of most drivers is to turn on the light at high beam which is dangerous for you as well as vehicles coming in the opposite direction. Due to the fog, high beams will be reflected back and impair your visibility even more.
• If your vehicle is not equipped with fog lights, then you should turn on headlights at low beam. These lights can also be used in addition to fog lights. It will be your choice whether to use these lights or not based on the visibility condition of that location.
• Drive defensively depending on the density of fog and visibility distance. It is essential to use the hazard lights in foggy weather, when the visibility is impaired. Hazard lights will improve visibility towards your vehicle. Occasionally, you should press brake paddle to light up brake lights and caution the following vehicle. Try to follow the tail light of the vehicle in front of you. You should always keep a safe stopping distance of 9 seconds or more.
• For foggy windscreen follow the same step as mentioned in the guidelines for rain. However, during winter, you can blow hot air on the windscreen.
• When you are not comfortable to drive due to inadequate visibility, pull over the vehicle at a safe place. Turn the hazard light and parking light on. Never stop the vehicle on the road.

Figure: Hazard lights/ blinkers switch on dash board

• Ask your fellow passengers to keep an eye on oncoming vehicles and obstacles on the road.
• In foggy conditions, open the windows to hear other vehicles more clearly and turn on the tail lights to make your vehicle more visible to others.